A scatterometer image of North Africa.

QuikScat SeaWinds v-polarised radar backscatter image of North Africa for the 3-day period of days 201-204, 2000. Grey tones represent the intensity of the radar backscatter coefficient(symbol: sigmaˆsuperscripted 'oh') with white indicating a value of -5 dB and black a value of -20 dB. Image: Scatterometer Climate Record Pathfinder study and Brigham Young Univesity